Chain attachment.



G. W. GOODRIDGE. GHAIN' ATTACHMENT.

Arrmouion 11.31) JUNE 20, 1913.

Patented July 14, 1914.

which the following w. eoonmnen, or Bnmenronr, on :Bmnenronroonnnc'rrcnr, 'assranon ro 'rnn BRYANT CGNNECTIGU'I, A CdRPO'lION 0FCON- cnarn antenna";

icence.

Specification of Itetters Yatent.

Patented July 1%, 191 1.

Application filed June 20, 1918. Serial no. 774,929.

To all whom it may concern 'Be it known that I, GILBERT W. G001 RIDGE, acitizen of the United States of America, and residing at Bridgeport, 1nthe county of Fairfield and State of Connectiout, have invented acertain new and useful- Chain Attachments,

is a specification. My invention relates to chain attachments andparticularly to an attachment forfac1l1- Improvement in tating'theadjustment of the length of the pull chains commonly used in connectionwith the pull switches of electric lamp sockets and the like, the objectof my invention being to provide a simple. device of this characterwhich is economically manufac+ tured and eflicient in operation.

In the accompanying drawing, Figure 1 is an elevation of an exemplaryembodiment of my invention arranged in a switch chain and partlydetached, Fig. 2 is an end view thereof of the attachment alone, drawnto a chain in the chain rail.

larger scale; Fig. 3 is a perspective of the attachment showing a chainend in process of adjustment; Fig. 4 is a. plan of the blank for theattachment shown in Fig. 1.

It is frequently desirable to add to the length of the pull chains ofstandard make which are attached to sockets as sent out by themanufacturer, since the standard length adopted may not bring the chainend within convenient reach where the socket is installed at aconsiderable height from the floor. It is often desirable furthermore toshorten the chain, especially for desk lamps where the standard lengthchain brings the chain end below a point at which it is dethe socket. Atpresent the customary manner of altering the length of the chainnecessitates the opening of the socket and the removal of the chain fromthe switch mechanism and a shorter or longer For the inexperienced thisis an inconvenient and even dangerous operation.

The present invention provides an attachment by means of which the chainmay be the adjustment of either readily adjusted in length by theinexperi urchaser, as well as by the skilled without opening the socket.

enced electrician,

' The cylindrical body,

' lnthe form shown, the present attachment, I

comprisesa cylindrical body 10 formed of thin spring metal apertur'ed at11- to receive the end of a chain ball and longitudin'ally slotted at 12to permit the travel of the usual chain link 13 therethrough to the endbearing aperture 14: of the attachment. 10, is formed from a blank ofspringsheet metal of substantially rectangular shape with rounding ends,as shown in Fig. 4, the opposite ends of the blank having bays, a, cutout on the axial line and the opposite sides ofv said blank beingrecessed on the transverse axis whereby when the said sides and ends arerolled to form the completed article, the end bays form .theendapertures, cesses form the central opening 11, and the transverse sidesof the blank codperate to form the restricted slot, 12, leading from theend to the central aperture. The aperture 14 of the body 10 is of lessdiameter than that of the standard chain ball 15 and the rounded end ofthe cylindrical body 10 the ball 15. In normal condition the slot 12 ispractically closed and 2. During the adjustment of the chain endhowever, the movement of the link 13 through the slot 12 spreads themetal until the link reaches the end perforation 14, whereupon the slotautomatically closes through'the spring action of the metal and the ballis thus prevented from accidental escape from the attachment. The entryof the link-into the slot forming the entry aperture 11 with a guideway16 which leads from the aperture to the slot 12.

,Various modifications of this attachment will readily suggestthemselves and the constructions shown may be regarded merely as exemlary embodiments of my invention.

I c aim as my invention 14., and the side reas shown in Figs. 1

may be facilitated by.

A chain connector of the type described,

comprising a blank formed of spring sheet nretal of substantiallyrectangular shape with rounding ends, the opposite ends of the blankhaving bays cut out on the axial being recessed on the transverse axiswhereconforms substantially to the curvature of V by when the said sidesand ends are rolled In testimony whereof I have signed my to form thecompleted article, the end bays name to this specification, in thepresence form end apertures and the side recesses of two subscribingwitnesses. form a. central opening and the transverse GILBERT W.GOODRIDGE. 3 sides of the blank cooperate to form a re- Witnesses:

stricted passageway from said end openings H. M. WICHERT, to saidcentral opening. A. H. JONES.

